CN115930525A

CN115930525A - Oxygen treatment device and refrigerating and freezing device with same

Info

Publication number: CN115930525A
Application number: CN202211116739.XA
Authority: CN
Inventors: 黄璐璐; 苗建林; 程学丽
Original assignee: Qingdao Haier Refrigerator Co Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Refrigerator Co Ltd; Haier Smart Home Co Ltd
Priority date: 2022-09-14
Filing date: 2022-09-14
Publication date: 2023-04-07
Also published as: WO2024055943A1

Abstract

The invention provides an oxygen treatment device and a refrigerating and freezing device with the same, wherein the oxygen treatment device comprises: a plurality of separated and independent liquid storage bins which are horizontally arranged in parallel and communicated with each other; wherein at least one of the liquid storage bins is an oxygen reaction bin which provides an assembly space for assembling the electrode pair and serves as a reaction site for performing an electrochemical reaction to generate oxygen-poor gas or oxygen-rich gas; and at least one liquid storage bin is a liquid amount adjusting bin and is provided with a liquid supplementing port communicated with an external liquid source so as to receive liquid from the external liquid source and provide the liquid for the at least one oxygen reaction bin. The liquid quantity adjusting bin and the oxygen reaction bin form a communicating vessel, and the liquid level can be consistent based on the communicating vessel principle, so that the scheme of the invention is favorable for reducing the impact force of a liquid supplementing process on the electrode pair and improving the structural stability of the oxygen treatment device.

Description

Oxygen treatment device and refrigerating and freezing device with same

Technical Field

The invention relates to modified atmosphere preservation, in particular to an oxygen treatment device and a refrigerating and freezing device with the same.

Background

The modified atmosphere preservation technology is a technology for prolonging the storage life of food by adjusting the gas components in the environment. The refrigeration and freezing device with the air-conditioning preservation function is widely favored. Among the numerous gas components, oxygen is of great interest. The oxygen treatment device can treat oxygen in a working environment to generate oxygen-poor gas or oxygen-rich gas, so that the oxygen content can be adjusted.

Some of the oxygen treatment devices in the prior art, for example, some oxygen treatment devices that treat oxygen by electrochemical reaction, need to be supplemented with electrolyte at appropriate time to continuously perform electrochemical reaction by electrode pair. However, the inventors have recognized that the fluid replacement process can create impact forces that can cause damage to the electrode pair, which in turn can lead to reduced performance.

The above information disclosed in this background section is only for enhancement of understanding of the background of the application and therefore it may comprise prior art that does not constitute known to a person of ordinary skill in the art.

Disclosure of Invention

It is an object of the present invention to overcome at least one of the technical drawbacks of the prior art and to provide an oxygen treatment device and a refrigeration and freezing device having the same.

A further object of the present invention is to reduce the impact of the fluid replacement process on the electrode pair and to improve the structural stability of the oxygen treatment device.

A further object of the present invention is to flexibly and flexibly adjust the structure and operating efficiency of an oxygen treatment device.

Another further purpose of the present invention is to reduce or avoid air resistance during fluid infusion and ensure the fluid infusion process to be carried out smoothly.

The invention further aims to avoid the phenomenon of disordered mixed flow of fluid on the premise that each liquid storage bin realizes the air pressure balance function and the liquid storage function.

Still another object of the present invention is to keep the liquid level in each liquid storage bin in a dynamic equilibrium state, thereby ensuring the smooth proceeding of the electrochemical reaction.

It is still a further object of the present invention to reduce the volume of the oxygen treatment device while ensuring the efficiency of the operation.

In particular, according to an aspect of the present invention, there is provided an oxygen treatment device comprising:

a plurality of separated and independent liquid storage bins which are horizontally arranged in parallel and communicated with each other; wherein

At least one of the liquid storage bins is an oxygen reaction bin which provides an assembly space for assembling the electrode pair and serves as a reaction site for performing an electrochemical reaction to generate an oxygen-poor gas or an oxygen-rich gas; and is provided with

At least one liquid storage bin is a liquid amount adjusting bin and is provided with a liquid supplementing port communicated with an external liquid source so as to receive liquid from the external liquid source and provide the liquid to the at least one oxygen reaction bin.

Optionally, each liquid storage bin is provided with a liquid path communication port; the liquid path communication port is positioned at the bottom section of the liquid storage bin; and is

The oxygen treatment device also comprises at least one liquid path communicating pipe, and the liquid path communicating pipe is communicated with the two liquid path communicating ports of the liquid storage bins to ensure that the liquid paths of the liquid storage bins are communicated.

Optionally, a gas path communicating port is formed in the top section of each liquid storage bin; and is

The oxygen treatment device also comprises at least one gas circuit communicating pipe, and one gas circuit communicating pipe is communicated with the gas circuit communicating ports of the two liquid storage bins to ensure that the gas circuits of the liquid storage bins are communicated; and the liquid storage bin is also provided with an air vent which is communicated with the air path of the air path communication port and is used for communicating the external environment.

Optionally, each liquid storage bin comprises an upper bin body and a lower bin body which are communicated with each other and are arranged up and down; the upper bin body is used for circulating gas, and the lower bin body is used for storing liquid; and is

The liquid path communicating opening is formed in the lower bin body; the gas path communicating opening is formed in the upper bin body; the air vent is arranged on the upper bin body of one liquid storage bin.

Optionally, the fluid infusion port is opened in the upper chamber body of the fluid volume adjusting chamber; and is

The oxygen treatment device also comprises a liquid level switch which is arranged in the lower bin body of the liquid amount adjusting bin and is used for moving according to the liquid level in the lower bin body so as to switch on and off a passage between the lower bin body and the upper bin body of the liquid amount adjusting bin.

Optionally, an isolation bin which is communicated with the fluid infusion port and is arranged at an interval with the gas path communication port is arranged in the upper bin body of the fluid volume adjusting bin; a liquid outlet is formed in the bottom of the isolation bin and is communicated with the lower bin body of the liquid quantity adjusting bin through the liquid outlet; and is

The liquid level switch is used for opening and closing the liquid outlet through movement, so that a passage between the lower bin body and the upper bin body of the liquid quantity adjusting bin is opened and closed.

Optionally, the oxygen treatment device further comprises at least one electrode pair, one electrode pair being assembled to the lower chamber body of one oxygen reaction chamber; and is

The electrode pair comprises at least one cathode and one anode and is used for transferring oxygen in external gas into the oxygen reaction chamber through electrochemical reaction so as to flow to the vent and discharge the oxygen.

Optionally, a plurality of the liquid storage bins are arranged at intervals to form an airflow gap; the lower bin body is provided with at least one lateral opening; and is

The cathode is arranged at the lateral opening to define an electrolytic cavity for containing electrolyte together with the lower cabin body, and the cathode is used for consuming oxygen in the gas flowing through the gas flow gap through electrochemical reaction to generate oxygen-deficient gas; the anode is disposed in the electrolytic chamber and is configured to provide a reactant to the cathode through an electrochemical reaction and generate oxygen.

Optionally, the reservoir is flat in shape; and is

The side openings are two and are oppositely arranged and are positioned on the wall of the lower bin body which is vertical to the arrangement direction of the liquid storage bins and has the largest area.

Optionally, the oxygen treatment device further comprises:

at least one connecting shaft; and is

Each the wall in stock solution storehouse is provided with runs through setting up and coaxial at least one shaft hole, the shaft hole with the inner space in stock solution storehouse cuts off each other, and supplies the connecting axle inserts wherein to realize connecting.

Optionally, the number of the connecting shafts is four, and the wall of each liquid storage bin is provided with four shaft holes; wherein

Two the shaft hole is located the top district section of stock solution storehouse, two the other shaft hole is located the bottom district section of stock solution storehouse.

Optionally, the oxygen treatment device further comprises:

the shell is provided with an air inlet interface and an air outlet interface which are used for being communicated with an external pipeline, and an air flow channel which is communicated with the air inlet interface and the air outlet interface and is used for arranging a plurality of the liquid storage bins is limited in the shell.

Optionally, the oxygen treatment device further comprises:

the airflow actuating device is arranged in the airflow channel and is provided with an air suction opening and an air outlet; wherein

The air suction port is in airflow communication with the air inlet interface, and the air outlet is opposite to the air outlet interface; and the airflow actuating device is used for promoting the airflow which flows into the airflow channel from the air inlet interface and flows to the air outlet interface.

According to another aspect of the present invention, there is also provided a refrigeration freezer comprising:

the box body is internally provided with a storage space; and

an oxygen treatment device as claimed in any preceding claim, for regulating the oxygen content of the storage space.

According to the oxygen treatment device and the refrigeration and freezing device with the same, the plurality of separated and independently arranged liquid storage bins which are horizontally arranged in parallel and communicated are arranged in the oxygen treatment device, at least one liquid storage bin is used as an oxygen reaction bin, at least one liquid storage bin is used as a liquid amount adjusting bin, liquid received by the liquid amount adjusting bin can enter the oxygen reaction bin, and the liquid amount adjusting bin and the oxygen reaction bin form a communicating vessel and can achieve the consistent liquid level based on the principle of the communicating vessel.

Furthermore, the oxygen treatment device and the refrigeration and freezing device with the same have the advantages that the liquid storage bins are separately and independently arranged, when the liquid channel communication ports are formed in the liquid storage bins and are communicated with the liquid channel communication ports of the liquid storage bins by the liquid channel communication pipes so as to realize liquid channel communication, the number of the liquid storage bins can be conveniently increased or decreased according to actual needs, so that the structure and the working efficiency of the oxygen treatment device can be flexibly adjusted by adopting the scheme of the invention, the internal structure of each liquid storage bin does not need to be adaptively modified, and the whole device has higher integration and integration.

Further, according to the oxygen treatment device and the refrigeration and freezing device with the same, the gas path communicating ports are formed in the top sections of the liquid storage bins, the gas path communicating pipes are utilized to enable the liquid storage bins to be communicated with each other, and the liquid storage bin is provided with the vent which is communicated with the gas path of the gas path communicating ports and used for being communicated with the external environment, so that the gas flow space communicated with the external environment can be connected in series in each liquid storage bin.

Furthermore, when each liquid storage bin comprises an upper bin body and a lower bin body which are communicated and arranged up and down, the upper bin body is provided with an air passage communication port, the lower bin body is provided with a liquid passage communication port, and an air vent is arranged on the upper bin body of one liquid storage bin.

Further, according to the oxygen treatment device and the refrigeration and freezing device with the same, when the upper bin body of the liquid quantity adjusting bin is provided with the liquid supplementing port, and the lower bin body of the liquid quantity adjusting bin is provided with the liquid level switch, the liquid level in each liquid storage bin can be in a dynamic balance state under the action of the liquid level switch, so that the electrochemical reaction can be stably carried out. And the liquid stored in the liquid storage bin can be always positioned in the lower bin body, and cannot occupy the airflow space defined by the upper bin body.

Furthermore, according to the oxygen treatment device and the refrigeration and freezing device with the same, the liquid storage bins are arranged into a flat shape, the lower bin body of the oxygen reaction bin is provided with the two lateral openings, and the lateral opening is arranged on the wall which is perpendicular to the arrangement direction of the liquid storage bins and has the largest area, so that the oxygen treatment device can form a dense arrangement structure, the volume of the oxygen treatment device is reduced, and the working efficiency is ensured.

The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.

Drawings

Some specific embodiments of the invention will be described in detail hereinafter by way of example and not by way of limitation with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:

FIG. 1 is a schematic block diagram of an oxygen treatment device according to one embodiment of the present invention;

FIG. 2 is a schematic exploded view of the oxygen treatment device shown in FIG. 1;

FIG. 3 is a schematic internal structural view of the oxygen treatment device shown in FIG. 1;

FIG. 4 is a schematic plan view of the internal structure of the oxygen treatment device shown in FIG. 3;

FIG. 5 is an assembled structural view of a reservoir of an oxygen treatment device according to an embodiment of the present invention;

FIG. 6 is a schematic side view of an assembled structure of a reservoir of the oxygen treatment device shown in FIG. 5;

FIG. 7 is a schematic exploded view of an assembled structure of a reservoir of the oxygen treatment device shown in FIG. 5;

FIG. 8 is a schematic perspective view of a liquid amount adjusting tank of the oxygen treatment device shown in FIG. 3;

FIG. 9 is a schematic block diagram of the housing of the oxygen treatment device shown in FIG. 1 with the top wall of the housing hidden;

FIG. 10 is an assembled block diagram of a positioning mechanism and a gas flow actuating device of an oxygen treatment device according to one embodiment of the present invention;

FIG. 11 is a schematic exploded view of the assembled structure of the positioning mechanism and airflow actuated device shown in FIG. 10;

FIG. 12 is a schematic structural view of an oxygen treatment device according to another embodiment of the present invention;

fig. 13 is a schematic structural view of a refrigerating and freezing apparatus according to an embodiment of the present invention.

Detailed Description

Reference now will be made in detail to embodiments of the invention, one or more examples of which are illustrated in the drawings. The examples are provided to illustrate the invention and not to limit it. In fact, it will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the scope or spirit of the invention. For instance, features illustrated or described as part of one embodiment, can be used with another embodiment to yield a still further embodiment. Thus, it is intended that the present invention cover the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents.

An oxygen treatment apparatus 10 and a refrigerating and freezing apparatus 20 having the same according to an embodiment of the present invention will be described with reference to fig. 1 to 13. The terms "upper", "lower", "top", "bottom", "transverse", "longitudinal", "horizontal", "vertical" and the like are used herein to describe the same or similar elements, but should not be construed to limit the present invention since they are used in a specific manner, unless otherwise indicated or suggested by the specification or drawings. To facilitate the construction of the device, some of the drawings of the invention are shown in perspective.

In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise. When a feature "comprises or comprises" a or some of its intended features, this indicates that other features are not excluded and that other features may be further included, unless expressly stated otherwise.

Unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and "coupled" and the like are to be construed broadly and can, for example, be fixedly connected or detachably connected or integral to one another; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be interconnected within two elements or in a relationship where two elements interact with each other unless otherwise specifically limited. Those skilled in the art should understand the specific meaning of the above terms in the present invention according to specific situations.

In the description of embodiments of the invention, reference to the description of "one embodiment," "some embodiments," "some examples," "an example" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The embodiment of the present invention first provides an oxygen treatment device 10. Fig. 1 is a schematic structural view of an oxygen treatment device 10 according to an embodiment of the present invention. Fig. 2 is a schematic exploded view of the oxygen treatment device 10 shown in fig. 1.

The oxygen treatment device 10 may generally comprise a plurality of separate and independent storage tanks arranged in parallel and communicating horizontally.

The liquid storage bins are separately and independently arranged, namely, the liquid storage bins are not integrally formed but can be independently manufactured and connected with one another. By "intercommunicating" is meant that any two reservoirs may be in direct or indirect communication to achieve fluid exchange and thereby maintain a consistent fluid level in each reservoir. Of course, in one example, when multiple reservoirs are in communication, gas exchange may also be achieved between any two reservoirs. When the liquid storage bins are arranged in parallel along the horizontal direction, the liquid storage bins are arranged in a stacking mode along the horizontal direction.

At least one of the reservoirs is an oxygen reaction chamber 300 which provides an assembly space for assembling the electrode pair and serves as a reaction site for performing an electrochemical reaction to generate an oxygen-deficient gas or an oxygen-enriched gas. The at least one liquid storage bin is a liquid amount adjusting bin 700 having a liquid replenishing port 342 communicated with an external liquid source to receive liquid from the external liquid source and provide the liquid to the at least one oxygen reaction bin 300.

The liquid amount adjusting chamber 700 stores liquid. The liquid amount regulation cartridge 700 of the present embodiment is not used for mounting an electrode pair. Fluid from an external source may enter the fluid volume adjustment cartridge 700 through the fluid infusion port 342. Since the respective reservoirs are communicated with each other, the liquid introduced into the liquid volume adjusting chamber 700 can flow into the oxygen reaction chamber 300 to replenish the oxygen reaction chamber 300 with the electrolyte.

Through set up a plurality of separation independent settings and along the level arrange and the stock solution storehouse of intercommunication side by side in oxygen processing apparatus 10, and utilize at least one stock solution storehouse as oxygen reaction storehouse 300, and utilize at least one stock solution storehouse as liquid measure adjustment bin 700, liquid that liquid measure adjustment bin 700 was received can get into oxygen reaction storehouse 300, because liquid measure adjustment bin 700 forms the linker with oxygen reaction storehouse 300, and can reach the liquid level unanimous based on the linker principle, therefore, adopt the scheme of this embodiment, be favorable to reducing the impact force of fluid infusion process to the electrode pair, improve oxygen processing apparatus 10's structural stability.

In one example, the liquid amount regulation reservoir 700 is one. When the liquid amount adjusting chamber 700 is provided as one chamber, the number of the liquid storage chambers can be reduced, and the volume of the entire oxygen treatment device 10 can be reduced. In another example, the liquid amount regulation tanks 700 may be provided in two, three, or more. At this time, the liquid storage amount of the whole oxygen treatment device 10 can be improved to a certain extent, and the liquid supplementing frequency can be reduced.

The number of the oxygen reaction chambers 300 may be one, but may be more than one, for example, two, three or more. Fig. 3 is a schematic internal structural view of the oxygen treatment device 10 shown in fig. 1, and fig. 4 is a schematic plan view of the internal structure of the oxygen treatment device 10 shown in fig. 3, showing one liquid amount regulation silo 700 and two oxygen reaction silos 300. When the oxygen reaction chamber 300 is provided in plural, the oxygen adjusting efficiency of the whole oxygen processing apparatus 10 can be improved, so that a proper fresh-keeping atmosphere can be created quickly.

The mode of realizing intercommunication of the liquid storage bins can be set according to actual needs. In some alternative embodiments, each reservoir is provided with a fluid communication port 312. The oxygen treatment device 10 further includes at least one liquid path communicating pipe 380, and one liquid path communicating pipe 380 communicates the liquid path communicating ports 312 of the two liquid storage compartments to communicate the liquid paths of the liquid storage compartments.

Fig. 5 is an assembly structural view of a reservoir of the oxygen treatment device 10 according to an embodiment of the present invention. Fig. 6 is a schematic side view of the assembled structure of the reservoir of the oxygen treatment device 10 shown in fig. 5. Fig. 7 is a schematic exploded view of an assembled structure of the reservoir of the oxygen treatment device 10 shown in fig. 5. For example, one liquid connection pipe 380 may connect the liquid connection ports 312 of two adjacent reservoirs. In this case, the two reservoirs at the head end and the tail end need not be directly connected. The number of the liquid path communicating pipes 380 is one less than that of the liquid storage bins. By adopting the scheme of the embodiment, the liquid path connecting structure is simple, and the liquid storage bin is convenient to increase and decrease.

In another example, adjacent reservoirs may be nested or may be nested to provide communication between the interior spaces.

Because each stock solution storehouse separation independent setting, when seting up liquid way intercommunication mouth 312 on the stock solution storehouse to when utilizing liquid way communicating pipe 380 intercommunication stock solution storehouse's liquid way intercommunication mouth 312 in order to realize the liquid way intercommunication, can increase and decrease the quantity of stock solution storehouse very conveniently according to actual need, consequently, adopt the scheme of this embodiment, can adjust oxygen processing apparatus 10's structure and work efficiency flexibly, need not to carry out the adaptability to the inner structure of each stock solution storehouse and reform transform, and whole device possesses higher integration and integration.

In one example, the fluid passage communication port 312 is located in a bottom section of the reservoir. The liquid passage communication port 312 may be provided on a side wall of the reservoir. For example, the liquid passage communication port 312 may be provided at a lower portion of the side wall of the reservoir. By adopting the scheme of the embodiment, when the liquid amount adjusting bin 700 replenishes liquid to the oxygen reaction bin 300, the liquid can slowly enter the oxygen reaction bin 300 from the bottom of the oxygen reaction bin 300, and the electrode pair is not scoured, so that the damage to the electrode pair in the liquid replenishing process can be reduced.

The liquid passage communication ports 312 of each reservoir may be provided in two so as to be connected to the adjacent two reservoirs through the liquid passage communication pipe 380, respectively. The two liquid storage bins at the head end and the tail end are respectively provided with a liquid path communication port 312 in an idle state and are not connected with the liquid path communication ports 312 of the adjacent liquid storage bins, and the liquid path communication ports 312 in the idle state can be sealed by sealing plugs 391 to prevent liquid leakage.

In some alternative embodiments, the top section of each reservoir is opened with an air channel connection 343. The air passage communication port 343 may be provided on the top wall of the liquid storage bin. Of course, the air passage communicating opening 343 may also be disposed on the side wall of the liquid storage bin and located at the upper portion of the side wall of the liquid storage bin.

The oxygen processing device 10 further comprises at least one gas circuit communicating pipe 370, and the gas circuit communicating pipe 370 communicates with the gas circuit communicating ports 343 of the two reservoirs to make the reservoirs gas-circuits communicate. For example, one air passage communicating tube 370 may communicate with the air passage communicating ports 343 of two adjacent reservoirs. In this case, the two reservoirs at the head end and the tail end need not be directly connected. The number of the gas communication pipes 370 is one less than that of the liquid storage bins. By adopting the scheme of the embodiment, the gas circuit connection structure is simple, and the liquid storage bin can be increased or decreased conveniently.

One liquid storage bin is also provided with a vent 341 which is communicated with the gas path of the gas path communicating port 343 and is used for communicating the external environment. The vent 341 may be provided in any of the reservoirs. The air vent 341 communicates with the air passage communicating opening 343 of the liquid storage compartment in which it is located, and communicates with the external environment of each liquid storage compartment, thereby making each liquid storage compartment communicate with the external environment directly or indirectly through an air passage.

Gas circuit intercommunication mouth 343 is seted up through the top section at the stock solution storehouse, and utilize gas circuit communicating pipe 370 to make each stock solution storehouse realize the gas circuit intercommunication, and set up at a stock solution storehouse and communicate the gas vent 341 that is used for communicateing the external environment with gas circuit intercommunication mouth 343 gas circuit, can establish ties out the air current space of intercommunication external environment in each stock solution storehouse, when liquid volume regulation storehouse 700 received the liquid that comes from the outside liquid source, under the effect in air current space, be favorable to realizing gas-liquid balance, reduce or avoid the fluid infusion process to produce the air lock, guarantee that the fluid infusion process smoothly goes on.

By adopting the scheme, all the gas in the liquid storage bin can be discharged into the external environment through the vent 341. When the electrochemical reaction performed in the oxygen reaction chambers 300 generates gas, the gas generated in each oxygen reaction chamber 300 may be collected to the vent 341 and centrally discharged, which facilitates centralized treatment and utilization of the exhaust gas. The vent 341 may be located in a top wall of a reservoir. For example, the vent 341 may be disposed on the top wall of the oxygen reaction chamber 300. In another example, when one air vent 341 is opened in one reservoir, another air vent 341 may be further opened in another reservoir to increase the air exhaust rate.

In some alternative embodiments, each magazine includes upper 340 and lower 310 cartridges, respectively, that communicate and are arranged one above the other. Wherein, the upper chamber body 340 is used for circulating gas, and the lower chamber body 310 is used for storing liquid. As the name implies, the upper cartridge body 340 is positioned above the lower cartridge body 310. The upper cartridge body 340 and the lower cartridge body 310 of the present embodiment can be integrally formed. A gas-liquid communicating opening is formed between the upper bin body 340 and the lower bin body 310, so that the upper bin body 340 and the lower bin body 310 are communicated with each other. So set up, can omit the assembly structure between upper silo body 340 and the lower silo body 310, and guarantee the gas tightness of the connection structure between upper silo body 340 and the lower silo body 310.

Of course, in another example, the upper cartridge body 340 and the lower cartridge body 310 could also be separately and independently manufactured and interconnected by a connection. The connection mode includes but is not limited to mutual insertion, mutual embedding and the like.

The liquid passage communication port 312 is opened in the lower cartridge body 310. For example, the liquid passage communication port 312 may be opened in a lower portion of the side wall of the lower cartridge body 310. The air passage communicating opening 343 is opened in the upper bin body 340. For example, the air passage communication opening 343 can open into the top wall of the upper cartridge body 340. The vent 341 is arranged on the upper bin body 340 of one liquid storage bin. For example, the vent 341 may be opened on the upper chamber body 340 of one oxygen reaction chamber 300 and located on the top wall of the upper chamber body 340.

When each liquid storage bin comprises an upper bin body 340 and a lower bin body 310 which are communicated with each other and are arranged up and down respectively, an air channel communicating port 343 is formed in the upper bin body 340, a liquid channel communicating port 312 is formed in the lower bin body 310, and a vent 341 is formed in the upper bin body 340 of one liquid storage bin. The gas generated in the oxygen reaction chamber 300 can be directly discharged to the vent 341 through the gas flow space, the exhaust efficiency is high, and the electrolyte is hardly carried by the gas discharged through the vent 341.

In some optional embodiments, the fluid infusion port 342 opens into the upper chamber body 340 of the fluid quantity adjusting chamber 700. The oxygen treatment device 10 further comprises a liquid level switch 720, which is disposed in the lower chamber body 310 of the liquid level adjustment chamber 700 and is used for moving according to the liquid level in the lower chamber body 310, so as to open and close the passage between the lower chamber body 310 and the upper chamber body 340 of the liquid level adjustment chamber 700. Fig. 8 is a schematic perspective view of the liquid amount regulation tank 700 of the oxygen treatment device 10 shown in fig. 3, showing the liquid level switch 720. In fig. 8 (a), a perspective portion is indicated by a dotted line, and in fig. 8 (b), a perspective portion is indicated by a solid line.

When the liquid amount of the liquid amount regulation bin 700 is reduced, the liquid level switch 720 can move downwards so as to open the passage between the lower bin body 310 and the upper bin body 340 of the liquid amount regulation bin 700, and at the moment, the liquid from an external liquid source can flow into the lower bin body 310 through the upper bin body 340, so that the liquid amount of the liquid amount regulation bin 700 is increased. When the liquid amount of the liquid amount-adjusting cabin 700 increases, the liquid level switch 720 may move upward to the initial position so as to restore the passage between the lower cabin body 310 and the upper cabin body 340 of the liquid amount-adjusting cabin 700 to the off state, at which time the liquid from the external liquid source cannot flow into the lower cabin body 310.

When the upper chamber body 340 of the liquid quantity adjusting chamber 700 is provided with the liquid supplementing port 342 and the lower chamber body 310 of the liquid quantity adjusting chamber 700 is provided with the liquid level switch 720, the liquid level in each liquid storage chamber can be in a dynamic balance state under the action of the liquid level switch 720, thereby ensuring the stable proceeding of the electrochemical reaction. And the liquid stored in the liquid storage bin can be always positioned in the lower bin body 310 and cannot occupy the air flow space defined by the upper bin body 340.

The level switch 720 may include a rotary float 721, a rotating shaft 723, and a switch body 722. Wherein the rotary shaft 723 is fixed inside the lower cartridge body 310. The switch body 722 is fixedly connected to the rotary float 721, or is integrated with the rotary float 721. The rotary float 721 is rotatably disposed in the lower chamber body 310 around the rotating shaft 723, and floats up and down according to the liquid level in the lower chamber body 310, so as to drive the switch body 722 to move, and then open and close the passage between the lower chamber body 310 and the upper chamber body 340 of the liquid level adjusting chamber 700.

An isolation chamber 710 which is communicated with the fluid infusion port 342 and is arranged at an interval with the air passage communication port 343 is arranged in the upper chamber body 340 of the fluid volume adjusting chamber 700. The bottom of the separation bin 710 is provided with a liquid outlet 711, and is communicated with the lower bin body 310 of the liquid quantity adjusting bin 700 through the liquid outlet 711. The fact that the separation chamber 710 is communicated with the upper chamber body 340 and is spaced from the air passage communication opening 343 means that the liquid flowing into the upper chamber body 340 can only enter the separation chamber 710 and flows into the lower chamber body 310 through the liquid outlet 711 of the separation chamber 710, and does not flow into the air passage communication opening 343, and the gas flowing into the air passage communication opening 343 does not flow into the separation chamber 710.

The liquid level switch 720 is used for opening and closing the liquid outlet 711 by moving, thereby opening and closing a passage between the lower chamber body 310 and the upper chamber body 340 of the liquid level regulating chamber 700. For example, when the liquid amount in the lower chamber body 310 of the liquid amount adjusting chamber 700 is sufficient and the liquid replenishing is not needed, the switch body 722 of the liquid level switch 720 can just close the liquid outlet 711. The rotary float 721 drives the switch body 722 to move under the condition of buoyancy change so as to open or close the liquid outlet 711, thereby opening or closing the passage between the lower chamber body 310 and the upper chamber body 340 of the liquid quantity regulation chamber 700.

The liquid outlet 711 may penetrate the bottom wall of the separation chamber 710 and protrude downward. Switch body 722 may have a sealing plug 391 that fits into the bottom opening of outlet 711 to close outlet 711.

By adopting the above scheme, when the liquid level switch 720 closes the passage between the lower bin body 310 and the upper bin body 340 of the liquid level adjusting bin 700, the liquid flowing into the upper bin body 340 can be completely temporarily stored in the isolation bin 710, and cannot overflow to other parts of the upper bin body 340, so that the air flow space of the liquid level adjusting bin 700 can be kept dry and smooth. The liquid level switch 720 may be configured to keep the liquid level of the liquid level regulating reservoir 700 lower than the upper reservoir body 340 at all times.

In some alternative embodiments, oxygen treatment device 10 further comprises at least one electrode pair. That is, the electrode pair may be provided in one or more. A pair of electrodes is assembled to the lower chamber body 310 of the oxygen reaction chamber 300. That is, one oxygen reaction chamber 300 is equipped with one electrode pair. The number of electrode pairs is the same as the number of oxygen reaction chambers 300. The liquid amount adjusting chamber 700 is not equipped with an electrode pair.

The electrode pair includes at least one cathode 320 and one anode 330 for transferring oxygen in the external gas into the oxygen reaction chamber 300 through an electrochemical reaction to flow to the vent 341 and discharge. Wherein, the external gas can refer to the environmental gas in the environment of each liquid storage bin. The oxygen transferred into oxygen reaction chamber 300 can flow into upper chamber body 340 of oxygen reaction chamber 300 and be discharged through air vent 341.

That is, under the action of the electrode pair, oxygen in the external air can be transferred into the oxygen reaction chamber 300 and discharged through the air vent 341, so that the environment of each liquid storage chamber forms a low oxygen atmosphere. The cathode 320 of the electrode pair may be one or more. When there are a plurality of cathodes 320 of the electrode pair, the anode 330 can be shared by a plurality of cathodes 320, so as to improve the efficiency of the electrochemical reaction.

In some alternative embodiments, a plurality of reservoirs are spaced to form an air flow gap. The lower cartridge body 310 defines at least one lateral opening 315. The lateral openings 315 of each lower cartridge body 310 can be provided in one or more numbers. The number of the lateral openings 315 of the lower cartridge body 310 of the oxygen reaction cartridge 300 is the same as the number of the cathodes 320 of the electrode pairs with which the lower cartridge body 310 is assembled.

A cathode 320 is disposed at a lateral opening 315 to define an electrolytic chamber for holding electrolyte together with the lower cartridge body 310, i.e., the cathode 320 closes the lateral opening 315 of the lower cartridge body 310. The cathode 320 is used to consume oxygen in the gas flowing through the gas flow gap by an electrochemical reaction to produce an oxygen-depleted gas. The oxygen in the air may undergo a reduction reaction at the cathode 320, i.e.: o is ₂ +2H ₂ O+4e ^- →4OH ^- . In one example, the electrolytic chamber contains an alkaline electrolyte, such as NaOH of 1-8 mol/L, and the concentration of the alkaline electrolyte can be adjusted according to actual needs.

The anode 330 and the cathode 320 are disposed in the electrolytic chamber in a spaced relationship with each other, and are used for providing a reactant to the cathode 320 through an electrochemical reaction and generating oxygen. OH generated by cathode 320 ^- An oxidation reaction may occur at the anode 330 and oxygen is generated, i.e.: 4OH ^- →O ₂ +2H ₂ O+4e ^- . In one example, the cathode 320 and the anode 330 may have a plate shape, respectively. In other examples, the anode 330 may be transformed into any other suitable shape, such as a cylindrical shape or an arc shape.

The above examples of electrochemical reactions of the cathode 320 and the anode 330 are merely illustrative, and based on the above examples, one skilled in the art should easily change the types of electrochemical reactions or develop the structure of the oxygen treatment device 10 suitable for other types of electrochemical reactions, and such changes and developments shall fall within the scope of the present invention.

By adopting the scheme, because the liquid storage bins are not mutually shielded, each liquid storage bin can be contacted with the external gas, so that the contact area between the cathode 320 assembled to the lower bin body 310 and the external gas can be increased, and the electrochemical reaction efficiency is improved. The lateral openings 315 may be provided on any wall of the lower cartridge body 310 of the oxygen reaction cartridge 300.

In some alternative embodiments, the lateral openings 315 may be disposed on the wall of the lower cartridge body 310 with the largest area and perpendicular to the arrangement direction of the plurality of storage cartridges. That is, the wall of the lower chamber 310 of the liquid storage chamber with the largest area is perpendicular to the arrangement direction of the liquid storage chambers, and the lateral opening 315 is disposed on the wall of the lower chamber 310 of the oxygen reaction chamber 300 with the largest area. With such an arrangement, the working area of the cathode 320 can be increased, thereby further improving the efficiency of the electrochemical reaction.

In some alternative embodiments, the reservoir is flat in shape, for example a flat cuboid shape. The two lateral openings 315 are disposed oppositely and on the wall of the lower chamber body 310 perpendicular to the arrangement direction of the plurality of storage chambers and having the largest area.

Through setting up the stock solution storehouse to flat shape to two side direction openings 315 are seted up to lower storehouse body 310 at oxygen reaction storehouse 300, and set up side direction opening 315 on the direction of arranging of a plurality of stock solution storehouses of perpendicular to and the biggest wall of area, can make oxygen processing apparatus 10 form intensive structure of arranging, can guarantee simultaneously that negative pole 320 has great working area, are favorable to reducing oxygen processing apparatus 10's volume, ensure that electrochemical reaction's efficiency is in higher level. Compared with the conventional oxygen treatment device 10, the oxygen treatment device 10 of the embodiment of the invention has a significantly reduced volume while maintaining a high working efficiency.

The liquid storage bins can be connected with each other to realize integrated assembly, for example, the liquid storage bins can be connected with each other through a clamping structure, an inserting structure or a screw connection structure.

In some optional embodiments, the oxygen treatment device 10 may further include at least one connecting shaft 392. The connecting shafts 392 may be provided in one or more, for example, two, three, four or more. The wall of each liquid storage bin is provided with at least one shaft hole 311 which is arranged in a penetrating mode and coaxial, the shaft holes 311 are mutually separated from the inner space of the liquid storage bin, and the connecting shaft 392 can be inserted into the shaft holes, so that connection is achieved. The number of the shaft holes 311 of each reservoir is the same as the number of the coupling shafts 392. A connecting shaft 392 is inserted into the coaxial shaft holes 311 of the plurality of reservoirs. When the number of the connecting shafts 392 and the number of the shaft holes 311 of each liquid storage bin are respectively multiple, the shaft holes 311 of each liquid storage bin can be divided into multiple groups, each group of the shaft holes 311 are coaxially arranged, and the same connecting shafts 392 penetrate through the same group of the shaft holes 311 of the multiple liquid storage bins.

In a further example, there are four connecting shafts 392, and the wall of each reservoir is provided with four shaft holes 311. Wherein, two shaft holes 311 are located the top section of stock solution storehouse, and two other shaft holes 311 are located the bottom section of stock solution storehouse.

By adopting the scheme, the liquid storage bins can be assembled into a whole through the connecting shaft 392, the assembly mode is simple, and an airflow gap can be formed between the adjacent liquid storage bins.

In some alternative embodiments, the oxygen treatment device 10 may further include a housing 200. Fig. 9 is a schematic configuration diagram of the housing 200 of the oxygen treatment device 10 shown in fig. 1, in which the top wall 220 of the housing 200 is hidden.

The housing 200 is formed with an inlet port 231 and an outlet port 221 for communicating with external pipes, and defines therein an air flow channel 280 communicating the inlet port 231 and the outlet port 221 for arranging a plurality of cartridges. A plurality of reservoirs may form an oxygen treatment assembly.

Since the housing 200 is formed with the gas inlet 231 and the gas outlet 221, the gas flow channel 280 can communicate with the space to be conditioned through a pipeline, so that the gas in the space to be conditioned can flow into the gas flow channel 280 from the gas inlet 231 and flow through the cathode of each electrode pair to form oxygen-poor gas or oxygen-rich gas under the action of the electrode pairs.

The electrode pairs mounted to the oxygen reaction chamber may be used to process oxygen in the gas flowing from the gas inlet 231 into the gas flow channel 280 to produce an oxygen-depleted gas or an oxygen-enriched gas. The oxygen-depleted gas or the oxygen-enriched gas is sent out through the outlet interface 221, thereby adjusting the oxygen content of the external space. The exterior space here may refer to a space to be conditioned, such as the storage space 610 of the refrigerated freezer 20. That is, the inlet port 231 and the outlet port 221 may communicate with the same space through external pipes, respectively. Of course, in another example, the inlet interface 231 and the outlet interface 221 may communicate with different spaces through external pipes, respectively.

By providing the housing 200 with the inlet port 231 and the outlet port 221 for communicating with external pipes and disposing the plurality of reservoirs in the airflow channel 280 for communicating the inlet port 231 and the outlet port 221, the gas from the external space can flow into the airflow channel 280 through the inlet port 231 and be treated by the electrode pair, thereby forming oxygen-poor gas or oxygen-rich gas, which is finally sent out from the outlet port 221. Since the gas in the external space can enter the air inlet 231 through the pipeline, with the solution of the present embodiment, the oxygen treatment device 10 can be disposed at any position, for example, at any position far away from the space to be conditioned, which can reduce the dependency of the assembly of the oxygen treatment device 10 on the scene structure, improve the assembly flexibility of the oxygen treatment device 10 in the refrigeration and freezing device 20, and expand the application range of the oxygen treatment device 10.

The electrode pairs may consume oxygen or generate oxygen, thereby acting to regulate the oxygen content of the gas flowing through the gas flow channel 280 for the purpose of treating oxygen.

In some alternative embodiments, the oxygen treatment device 10 may further comprise an inlet line and an outlet line. The intake pipe communicates with the intake port 231 and serves as an external pipe of the intake port 231. The air outlet pipeline is communicated with the air outlet port 221 and serves as an external pipeline of the air outlet port 221. The end of the inlet line remote from the inlet port 231 may extend to the space to be conditioned. The end of the outlet line remote from the outlet connection 221 may extend to the space to be conditioned. The gas in the space to be conditioned flows into the inlet interface 231 through the inlet pipeline, flows into the gas flow channel 280, flows out of the gas flow channel 280 through the outlet interface 221, and flows back to the space to be conditioned through the outlet pipeline, and the inlet interface 231 and the outlet interface 221 may be respectively directly or indirectly communicated with respective external pipelines.

In one example, the inlet interface 231 and the outlet interface 221 may be openings or holes formed on the housing 200, respectively. In some alternative embodiments, the air inlet 231 is a hollow cylindrical interface formed on the housing 200 and bulging outward; and/or the air outlet port 221 is a hollow cylindrical port formed on the housing 200 and protruding outward.

When the air inlet 231 is a hollow cylindrical interface formed on the housing 200 and protruding outward, and/or the air outlet 221 is a hollow cylindrical interface formed on the housing 200 and protruding outward, the air inlet 231 and/or the air outlet 221 may communicate with the external pipeline in a plugging or nesting manner, which may reduce the operation difficulty of connection between the oxygen treatment device 10 and the external pipeline.

In some alternative embodiments, the gas inlet interface 231 and the gas outlet interface 221 are formed on two different walls of the housing 200, so that the distance between the gas inlet interface 231 and the gas outlet interface 221 can be appropriately increased, the gas flow channel 280 has a longer gas flow path, and the gas flow time when flowing through the gas flow channel 280 is increased, so that the gas can be sufficiently contacted with the cathode of the electrode pair. In one example, the inlet port 231 is formed on the bottom wall 210 or one side wall of the housing 200 and the outlet port 221 is formed on the top wall 220 or another side wall of the housing 200. The positions of the inlet port 231 and the outlet port 221 may be interchanged.

In a further embodiment, the inlet interface 231 is offset from the outlet interface 221 in the longitudinal and lateral directions. For example, in one example, the inlet interface 231 is formed in a bottom section of the housing 200 and the outlet interface 221 is formed in a top section of the housing 200; further the air inlet port 231 may be located at one lateral side of the housing 200, and further the air outlet port 221 may be located at the other lateral side of the housing 200. In a further example, the housing 200 is substantially in the shape of a hollow cylinder, such as a hollow prism or a hollow cylinder, the air inlet port 231 is disposed on a sidewall of the housing 200 and located at the bottom of the housing 200, and the air outlet port 221 is disposed on the top wall 220 of the housing 200 and away from the sidewall of the housing 200 where the air inlet port 231 is disposed so as to be diagonally opposite to the air inlet port 231.

By disposing the gas inlet 231 and the gas outlet 221 on two different walls of the housing 200, or further disposing the gas inlet 231 and the gas outlet 221 in a longitudinally and laterally offset manner, the flow path of the gas flowing through the gas flow channel 280 can be extended, and the gas flowing through the gas flow channel 280 can be in sufficient contact with the cathode of the electrode pair, so that the oxygen content of the oxygen-depleted gas sent out of the gas outlet 221 is at a lower level, or the oxygen content of the oxygen-enriched gas sent out of the gas outlet 221 is at a higher level.

In some alternative embodiments, oxygen treatment device 10 further comprises a gas flow actuator 400 disposed in gas flow channel 280 and having a gas suction opening 411 and a gas outlet 412. The air inlet 411 is in air flow communication with the air inlet 231, and the air outlet 412 is opposite to the air outlet 221. And the airflow facilitating device 400 is configured to facilitate the formation of an airflow from the inlet interface 231 into the airflow channel 280 and to the outlet interface 221.

When the airflow actuating device 400 is disposed in the airflow channel 280, the air suction opening 411 of the airflow actuating device 400 is in airflow communication with the air inlet interface 231, and the air outlet 412 of the airflow actuating device 400 is opposite to the air outlet interface 221, air in the external space can flow from the air inlet interface 231 into the airflow channel 280 and flow to the air outlet interface 221 under the actuation of the airflow actuating device 400, so as to form an active high-speed airflow circulation structure, change a mode of capturing oxygen only by using a molecular diffusion principle, and contribute to increasing the flow rate of the air flowing through the airflow channel 280 in unit time, thereby improving the working efficiency of the oxygen treatment device 10.

In one example, the airflow actuation device 400 is a centrifugal fan. Of course, in other examples, the airflow actuation device 400 may be replaced with any other fan, such as an axial flow fan, etc.

In some alternative embodiments, the airflow channel 280 has a first section 281 connected to the air inlet interface 231 and having a gradually expanding flow cross section, and a second section 282 connected to the air suction opening 411 of the airflow actuation device 400 and having a gradually tapering flow cross section. The cross-sectional area of the flow line cluster perpendicular to the gas flow (i.e., the area of the flow cross-section) gradually increases in the gas flow direction as the gas flows through the first section 281. The cross-sectional area of the flow line cluster perpendicular to the gas flow (i.e., the area of the flow cross-section) gradually decreases in the gas flow direction as the gas flows through the second section 282.

By providing the first section 281, which is connected to the air inlet 231 and has a gradually expanding flow cross section, and the second section 282, which is connected to the air suction opening 411 of the airflow actuator 400 and has a gradually contracting flow cross section, in the airflow channel 280, the flow of the air flowing through the airflow channel 280 can be guided by the first section 281 and the second section 282, respectively, so as to reduce or avoid turbulent flow. And the gas flowing into the gas inlet port 231 may flow at a reduced speed by the first section 281 to extend the flow time so as to be sufficiently in contact with the cathode of the electrode pair; under the action of the second section 282, the gas can flow at an accelerated speed and flow out of the air outlet port 221 at a higher speed, so as to improve the air conditioning efficiency of the space to be conditioned.

In one example, the first and

second sections

281, 282 may be directly connected. The oxygen processing component 300 may be disposed in the first section 281 or the second section 282, or may be disposed at the interface between the first section 281 and the second section 282, or disposed in both the first section 281 and the second section 282.

In another example, the airflow passage 280 also has a third section 283 connected between the first and

second sections

281, 282. The first and

second sections

281 and 282 are located at both sides of the third section 283. Dashed lines in fig. 9 show the borderline between the first section 281 and the third section 283 and the borderline between the second section 282 and the third section 283.

The oxygen processing assembly 300 is disposed within the third section 283. The area of the flow cross section of the third section 283 (i.e., the cross-sectional area of the flow line cluster perpendicular to the gas flow) can be kept constant in the gas flow direction. As such, the flow rate of the gas flowing through the third section 283 does not vary significantly, allowing each portion of the oxygen treatment assembly 300 to uniformly contact the flowing gas, thereby uniformly generating the oxygen depleted gas or the oxygen enriched gas.

In some alternative embodiments, oxygen treatment device 10 further comprises a positioning mechanism 500 secured within gas flow channel 280 and fixedly coupled to gas flow activation device 400 to secure gas flow activation device 400 within gas flow channel 280. Fig. 10 is an assembled structural view of the positioning mechanism 500 and the flow actuator 400 of the oxygen treatment device 10 according to one embodiment of the present invention. Fig. 11 is a schematic exploded view of an assembled structure of the positioning mechanism 500 and the airflow actuating device 400 shown in fig. 10.

When it is desired to mount the airflow actuating device 400 to the airflow channel 280, the airflow actuating device 400 can be first assembled on the positioning mechanism 500, and then the positioning mechanism 500 can be assembled in the airflow channel 280, for example, fixed on the inner wall of the housing 200. The use of the positioning mechanism 500 to indirectly secure the airflow actuating device 400 to the airflow channel 280 can avoid directly connecting the airflow actuating device 400 to the housing 200 in the relatively narrow airflow channel 280.

In some further embodiments, the airflow actuation device 400 includes a volute 410 and a wind rotor 420 disposed within the volute 410. The suction opening 411 and the air outlet 412 are respectively formed on the scroll case 410.

The positioning mechanism 500 defines a mounting groove 510 into which the scroll case 410 is fitted, and also defines a first opening 520 communicating with the mounting groove 510 and penetrating the air outlet 412, and a second opening 530 communicating with the mounting groove 510 and penetrating the air suction opening 411. First opening 520 may be aligned with air inlet 411 of scroll 410, and second opening 530 may be aligned with air outlet 412 of scroll 410. The scroll case 410 may be fixed in the mounting groove 510 by a screw coupling manner.

By assembling the airflow actuating device 400 in the installation groove 510 of the positioning mechanism 500 and communicating the installation groove 510 with the first opening 520 and the second opening 530, the assembling stability between the airflow actuating device 400 and the positioning mechanism 500 can be improved, and the blockage of the air suction opening 411 and the air outlet 412 of the airflow actuating device 400 by the positioning mechanism 500 can be reduced or avoided.

In some alternative embodiments, the positioning mechanism 500 further defines an outwardly protruding detent 540 formed extending outwardly from at least a portion of the opening edge of the mounting slot 510. The inner wall of the housing 200 correspondingly defines a catch slot 241 into which the male catch 540 is inserted to effect the snap-fit.

With the above arrangement, by fixing the positioning mechanism 500 in the air flow channel 280 and fixedly connecting the positioning mechanism 500 with the air flow actuator 400, so as to fix the air flow actuator 400 in the air flow channel 280, when the positioning mechanism 500 is fixed on the inner wall of the housing 200 by adopting the matching structure of the clamping jaws and the clamping grooves 241, the assembling manner of the air flow actuator 400 of the oxygen treatment device 10 can be simplified.

In some alternative embodiments, the outward protruding claws 540 may be formed to extend radially outward from at least a portion of the opening edge of the mounting groove 510, for example, may be formed to extend outward from both lateral ends and the bottom end of the mounting groove 510.

In one example, the positioning mechanism 500 also defines a flange 550 formed extending outwardly from the top of the open edge of the mounting slot 510. The flange 550 is provided with a first screw hole 551, and a second screw hole 242 opposite to the first screw hole 551 is correspondingly formed on the inner wall of the housing 200, so that the flange 550 is fixedly connected with the inner wall of the housing 200 through screw connection.

In another example, the positioning mechanism 500 may define the male latch 540 and the flange 550 at the same time, so as to fix the positioning mechanism 500 on the inner wall of the housing 200 by using the mating structure of the latch and the latch 241 and the screw structure at the same time, which is beneficial to further improve the assembling stability of the airflow actuator 400 in the airflow channel 280.

In some alternative embodiments, the outer surface of the cathode of the electrode pair extends in the direction of the extension of the stream cluster of gas flow through the third section 283.

That is, the extension direction of the outer surface of the cathode 320 of the electrode pair is parallel to the extension direction of the stream of the gas flowing through the third section 283, so that the gas flowing through the third section 283 can uniformly contact with the outer surface of the cathode 320 of the electrode pair at every time, thereby prolonging the contact time of the cathode 320 of the electrode pair with the gas stream to be treated per unit time.

In one example, the oxygen discharged through the gas vent 341 may be discharged directly. In another example, the oxygen discharged through the air vent 341 can be delivered to the high oxygen fresh-keeping space of the refrigerating and freezing device 20 to create a high oxygen fresh-keeping atmosphere, so as to improve the fresh-keeping performance of the refrigerating and freezing device 20.

By adopting the above structure, the oxygen treatment device 10 can be used to consume the oxygen in the low-oxygen fresh-keeping space of the refrigeration and freezing device 20, and the oxygen treatment device 10 can be used to increase the oxygen in the high-oxygen fresh-keeping space of the refrigeration and freezing device 20, so that the function reuse of the oxygen treatment device 10 can be realized.

In some optional embodiments, the housing 200 further defines an oxygen outlet 222. The oxygen treatment device 10 further includes an oxygen exhaust pipe 350 having one end communicating with the vent and the other end extending from the oxygen exhaust port 222 to the outside of the housing 200, for exhausting the oxygen exhausted through the vent to the outside of the housing 200.

In other alternative embodiments, the oxygen discharge pipe 350 may be omitted from the oxygen treatment device 10, the vent 341 may be a hollow cylindrical interface formed in the upper cartridge body 340 and protruding outward, and the vent 341 may extend out of the casing 200 through the oxygen discharge port 222 to discharge the oxygen flowing through to the outside of the casing 200.

In some optional embodiments, the casing 200 further has a liquid injection port 223. And the oxygen treatment device 10 further comprises a liquid replenishing pipe 360, one end of which is communicated with the liquid replenishing port 342, and the other end of which extends out of the casing 200 from the liquid filling port 223, for guiding the liquid from an external liquid source to the lower chamber body 310 of the liquid amount adjusting chamber 700.

In some alternative embodiments, the housing 200 has a bottom wall 210 and a top wall 220 and first and

second side walls

230 and 240, respectively, extending upward from the bottom wall 210 to the top wall 220 and disposed opposite.

The air outlet port 221 is formed on the top wall 220 of the housing 200, and may be disposed on one lateral side of the housing 200, for example. The air inlet 231 is formed on the first side wall 230 of the housing 200, for example, the first side wall 230 may be formed on the other lateral side of the housing 200, and the air inlet 231 may be disposed at the bottom center of the first side wall 230. The airflow actuating device 400 is fixed on the second sidewall 240 of the housing 200 and is located below the air outlet interface 221.

With the above-described structure, the gas flowing through the gas flow path 280 can flow in an obliquely upward direction by the gas flow actuator 400, and the flow path of the gas flowing through the gas flow path 280 is extended.

The case 200 also has third and

fourth sidewalls

250 and 260, first and second flow guide surfaces 271 and 272, and third and fourth flow guide surfaces 273 and 274.

Wherein the third sidewall 250 and the fourth sidewall 260 respectively extend from the bottom wall 210 to the top wall 220 and enclose a cylinder with an open top together with the first sidewall 230 and the second sidewall 240. In one example, the first sidewall 230 is substantially parallel to the second sidewall 240 and the third sidewall 250 is substantially parallel to the fourth sidewall 260.

The first guide surface 271 and the second guide surface 272 extend from the inner surface of the first sidewall 230 to the inner surface of the third sidewall 250 and the inner surface of the fourth sidewall 260, respectively, and form an obtuse angle with the inner surface of the first sidewall 230 to define a first section 281. The first deflector surface 271 may extend from an inner surface of an end section of the first sidewall 230 near the third sidewall 250 to an inner surface of an end section of the third sidewall 250 near the first sidewall 230. The second flow guide surface 272 may extend from an inner surface of the end section of the first sidewall 230 near the fourth sidewall 260 to an inner surface of the end section of the fourth sidewall 260 near the first sidewall 230.

The third flow guide surface 273 and the fourth flow guide surface 274 extend from the inner surface of the second sidewall 240 to the inner surface of the third sidewall 250 and the inner surface of the fourth sidewall 260, respectively, and form an obtuse angle with the inner surface of the second sidewall 240 to define a second section 282. The third flow directing surface 273 may extend from the inner surface of the end section of the second sidewall 240 near the third sidewall 250 to the inner surface of the end section of the third sidewall 250 near the second sidewall 240. The fourth flow guide surface 274 may extend from an inner surface of the end section of the second sidewall 240 proximate to the fourth sidewall 260 to an inner surface of the end section of the fourth sidewall 260 proximate to the second sidewall 240.

In one example, the top wall 220, the bottom wall 210, the first side wall 230, the second side wall 240, the third side wall 250, the fourth side wall 260, the first flow guide surface 271, the second flow guide surface 272, the third flow guide surface 273, and the fourth flow guide surface 274 of the case 200 may be manufactured through an integral molding process. With the above structure, the housing 200 can be mass-produced by an integral molding process, so that the assembly process of the whole oxygen treatment device 10 can be simplified, and the product consistency can be ensured.

In one example, the top wall 220 of the housing 200 is removably disposed. And the edge of the top wall 220 of the housing 200 may be fixedly coupled with the edge of the top opening to achieve sealing. The connection means includes but is not limited to screwing, bonding or clipping, etc. The oxygen discharge port 222 and the liquid injection port 223 may be provided on the top wall 220 of the case 200, respectively.

In one example, the top wall 220 of the housing 200 is connected with a flap extending downward from an edge of the top wall 220 to define a lower opening.

The vertical length of the folded edge can be adjusted according to actual needs to adapt to different scenes. The vertical length of the flap is substantially equal to the depth of the lower opening. The edge of the lower opening is attached to the edge of the top opening of the cylinder body which is enclosed by the first side wall, the second side wall, the third side wall and the fourth side wall together, so that sealing is realized.

Fig. 12 is a schematic structural view of an oxygen treatment device 10 according to another embodiment of the present invention. As shown in fig. 12, when the vertical length of the folded edge is small, in order to avoid that the air passage communication pipe 370 cannot be assembled due to a narrow space, an optical hole may be formed in the top wall 220 of the housing 200 so that at least a portion of the air passage communication pipe 370 extends to the outside of the housing 200 therethrough.

The embodiment of the invention also provides a refrigerating and freezing device 20. The refrigerating and freezing device 20 according to the embodiment of the present invention may be a refrigerator, or may be a refrigerating apparatus having a low-temperature storage function, such as a refrigerator, a freezer, or a freezer. Fig. 13 is a schematic configuration diagram of a refrigerating and freezing apparatus 20 according to an embodiment of the present invention. The refrigeration and freezing device 20 comprises a box 600 and the oxygen treatment device 10 of any one of the above embodiments. The interior of the case 600 defines a storage space 610. The oxygen processing device 10 is used to regulate the oxygen content of the storage space 610.

The electrode pairs mounted on the oxygen reaction chamber 300 are used to generate oxygen-deficient gas or oxygen-enriched gas through electrochemical reaction to be supplied to the storage space 610, so that the storage space 610 creates a low-oxygen fresh-keeping atmosphere and a high-oxygen fresh-keeping atmosphere.

The air outlet interface 221 of the housing 200 of the oxygen processing device 10 is communicated with the storage space 610, for example, the storage space 610 can be communicated with the air return pipeline. The oxygen-poor gas or the oxygen-rich gas is sent out through the air outlet interface 221, so as to adjust the oxygen content of the storage space 610.

In one example, the storage space 610 may be a hypoxic fresh space; the electrode pair serves to consume oxygen in the gas flowing into the gas flow channel 280 through an electrochemical reaction to generate an oxygen-depleted gas. In this case, in a further example, a high oxygen fresh-keeping space may be further defined in the box 600. The high oxygen fresh-keeping space can be communicated with the oxygen discharge port 222 on the shell 200 through a pipeline to receive oxygen from the oxygen discharge port 222.

In another example, the storage space 610 may be a high oxygen fresh space. The electrode pair is used for generating oxygen through electrochemical reaction and discharging the oxygen through the air port. The air vent of the oxygen processing assembly 300 may be communicated with the air flow channel 280 and the air outlet interface 221, and the air outlet interface 221 may be communicated with the high oxygen fresh-keeping space through a pipeline to deliver the oxygen generated by the electrochemical reaction to the high oxygen fresh-keeping space.

Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been illustrated and described in detail herein, many other variations or modifications consistent with the principles of the invention may be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the invention. Accordingly, the scope of the invention should be understood and interpreted to cover all such other variations or modifications.

Claims

1. An oxygen treatment device, comprising:

At least one of the liquid storage bins is an oxygen reaction bin which provides an assembly space for assembling the electrode pair and serves as a reaction site for performing an electrochemical reaction to generate an oxygen-poor gas or an oxygen-rich gas; and is

2. The oxygen treatment device according to claim 1,

each liquid storage bin is provided with a liquid path communication port; the liquid channel communication port is positioned at the bottom section of the liquid storage bin; and is

3. The oxygen treatment device according to claim 2,

a gas path communicating port is formed in the top section of each liquid storage bin; and is

The oxygen treatment device also comprises at least one gas path communicating pipe, and one gas path communicating pipe is communicated with the gas path communicating ports of the two liquid storage bins to ensure that the gas paths of the liquid storage bins are communicated; and one liquid storage bin is also provided with a vent communicated with the gas path of the gas path communication port and used for communicating the external environment.

4. The oxygen treatment device according to claim 3,

each liquid storage bin comprises an upper bin body and a lower bin body which are communicated with each other and are arranged up and down; the upper bin body is used for circulating gas, and the lower bin body is used for storing liquid; and is

The liquid path communication opening is formed in the lower bin body; the gas path communication opening is formed in the upper bin body; the air vent is arranged on the upper bin body of one liquid storage bin.

5. The oxygen treatment device according to claim 4,

the liquid supplementing port is arranged on the upper bin body of the liquid amount adjusting bin; and is

The oxygen processing device also comprises a liquid level switch which is arranged in the lower bin body of the liquid amount regulation bin and is used for moving according to the liquid level in the lower bin body so as to switch on and off a passage between the lower bin body and the upper bin body of the liquid amount regulation bin.

6. The oxygen treatment device according to claim 5,

an isolation bin communicated with the liquid supplementing port and arranged at an interval with the gas path communication port is arranged in the upper bin body of the liquid amount adjusting bin; a liquid outlet is formed in the bottom of the isolation bin and is communicated with the lower bin body of the liquid quantity adjusting bin through the liquid outlet; and is

The liquid level switch is used for opening and closing the liquid outlet through moving, so that a passage between the lower bin body and the upper bin body of the liquid amount adjusting bin is opened and closed.

7. The oxygen treatment device according to claim 4,

the oxygen treatment device also comprises at least one electrode pair, and one electrode pair is assembled to the lower bin body of the oxygen reaction bin; and is

8. The oxygen treatment device according to claim 7,

the plurality of liquid storage bins are arranged at intervals to form airflow gaps; the lower bin body is provided with at least one lateral opening; and is

The cathode is arranged at the lateral opening, so that the cathode and the lower cabin body jointly define an electrolysis cavity for containing electrolyte, and the cathode is used for consuming oxygen in the gas flowing through the gas flow gap through electrochemical reaction to generate oxygen-poor gas; the anode is disposed in the electrolytic chamber and is configured to provide a reactant to the cathode through an electrochemical reaction and generate oxygen.

9. The oxygen treatment device according to claim 8,

the liquid storage bin is flat; and is provided with

10. The oxygen treatment device of claim 1, further comprising:

at least one connecting shaft; and is provided with

11. The oxygen treatment device according to claim 10,

the number of the connecting shafts is four, and four shaft holes are formed in the wall of each liquid storage bin; wherein

12. The oxygen treatment device of claim 1, further comprising:

13. The oxygen treatment device of claim 12, further comprising:

14. A refrigeration freezer apparatus, comprising:

the box body is internally provided with a storage space; and

oxygen treatment device according to any one of claims 1-13, for regulating the oxygen content of the storage space.